JH-350 Integrated Hardfacing & Automatic Air Carbon Arc Gouging Machine
One automated platform for gouging, hardfacing and heavy wear component rebuilding.
The JH-350 Series Integrated Hardfacing & Automatic Air Carbon Arc Gouging Machine is a modular automated repair system developed by JINHUA for industrial wear component rebuilding.
Unlike conventional equipment designed only for welding, the JH-350 integrates automatic hardfacing and automatic air carbon arc gouging into one modular platform. The system supports programmable multi-axis movement and three-axis interpolation, allowing the welding or gouging head to follow straight, oscillating and curved trajectories according to the workpiece geometry.
How the JH-350 Can Be Configured
The JH-350 series is particularly suitable for repair and rebuilding of large wear components that are difficult, expensive or time-consuming to replace.
Typical Applications
- Vertical mill rollers
- Grinding rolls
- Roller press surfaces
- Continuous casting rolls
- Coal mill rollers
- Crusher components
- Wear liners
- Large wear-resistant components
Main Industries
What Is the JH-350 Hardfacing & Gouging Machine?
The JH-350 is an automated maintenance platform designed to perform two important stages of wear-component rebuilding.
Automatic Gouging
Damaged, fatigued or previously deposited material can be removed using automated air carbon arc gouging.
Automatic Hardfacing
After surface preparation, new wear-resistant alloy can be deposited using a programmable automatic welding process.
Integrating these functions into one platform reduces the amount of manual repositioning required between removal and rebuilding operations. This makes the JH-350 suitable for repeatable repair of complex industrial wear surfaces.
The machine can control:
- X-axis movement
- Y-axis movement
- Additional coordinated axis movement
- Welding travel speed
- Gouging travel speed
- Wire feeding
- Carbon electrode feeding
- Welding trajectory
- Oscillation
- Start and end positions
- Process monitoring
One platform, two process stages — automatic gouging followed by automatic hardfacing.
Why Combine Hardfacing and Air Carbon Arc Gouging?
Wear component rebuilding normally involves more than simply welding new material onto the worn surface. Before hardfacing, damaged or unsuitable material may need to be removed.
Air carbon arc gouging uses an electric arc to melt the metal surface while compressed air removes the molten metal from the groove. This process can be used for:
- Removing damaged weld metal
- Removing old hardfacing layers
- Preparing worn areas
- Removing surface defects
- Preparing grooves before rebuilding
- Correcting unsuitable deposited material
After gouging, the same JH-350 platform can be configured for automatic hardfacing. This provides a more integrated repair workflow:
Inspect / Gouge / Prepare /Hardface / Rebuild
Gouging and hardfacing on one platform — material removal followed by wear-resistant rebuilding.
Prepared groove before rebuilding — consistent gouging geometry for the following welding pass.
In-Situ and Offline Hardfacing
A modular JH-350 configuration can be installed around the workpiece for in-situ hardfacing repair where the application allows, or used as an offline workshop system when the component can be removed.
In-Situ Repair
For very large industrial components, removing the workpiece from the production equipment can require substantial downtime, lifting equipment and transportation. The objective is to reduce disassembly and transportation requirements.
Typical in-situ applications include:
- Vertical mill rollers
- Roller presses
- Coal grinding equipment
- Large wear components
- Certain installed cylindrical components
Offline Repair
When the component can be removed from the production machine, the JH-350 can also be used as an offline hardfacing system. Offline repair provides greater flexibility for:
- Inspection
- Surface preparation
- Gouging
- Multiple-layer rebuilding
- Controlled welding
- Dimensional inspection
One Platform, Two Strategies
The same JH-350 platform can therefore be adapted to both maintenance strategies — installed around large components on site, or used in the workshop for controlled offline rebuilding.
Modular installation around the workpiece — designed for on-site and workshop repair strategies.
In-situ installation — modular structure positioned around the workpiece.
Offline workshop repair — controlled offline rebuilding station.
Feeding and Torch Systems
Dedicated feeding mechanisms and a high-temperature hardfacing torch support both gouging and continuous overlay welding.
High-Torque Flux-Cored Wire Feeding
The hardfacing system includes a dedicated flux-cored wire feeding mechanism. Stable wire feeding is especially important during high-current and continuous overlay welding. The system is designed to provide:
- High feeding torque
- Stable wire delivery
- Consistent welding
- Continuous industrial operation
The exact wire diameter range depends on the selected feeder and welding process.
Automatic Carbon Electrode Feeding
For gouging operation, carbon electrode movement must remain stable during continuous material removal. The JH-350 uses controlled carbon electrode feeding rather than relying entirely on manual adjustment. The system combines:
- Controlled drive
- PID regulation
- Analog signal control
- Process feedback
These maintain more stable carbon electrode feeding during automatic operation.
Dedicated High-Temperature Hardfacing Torch
The JH-350 can be equipped with a dedicated hardfacing welding torch designed for continuous operation. The torch system is developed for:
- High-current welding
- Continuous hardfacing
- High-temperature environments
- Industrial wear repair
The modular mounting structure allows the torch angle and position to be adjusted according to different workpiece geometries.
Quick-connect modules — fast process switching between hardfacing and gouging.
Touchscreen HMI & wireless handheld controller — teaching, parameter setting and alarm feedback.
TECO PLC Control, HMI and Remote Operation
The JH-350 series uses a PLC-based digital control architecture. The standard system can incorporate a TECO PLC and touchscreen HMI to control machine movement and automatic welding functions.
TECO PLC Digital Control
The control system coordinates:
- Axis movement
- Welding
- Gouging
- Wire feeding
- Carbon electrode feeding
- Position teaching
- Process execution
- Detection
- Alarm feedback
This provides a centralized operating platform for different repair processes.
Touchscreen HMI
The machine can be equipped with a color touchscreen human-machine interface. Operators can use the interface to:
- Set movement parameters
- Set welding parameters
- Select operating modes
- Teach welding positions
- Start automatic programs
- Monitor operating status
- View feedback
- Check alarms
This reduces dependence on complex manual control panels.
Wireless Handheld Controller
A wireless handheld terminal is available for machine operation near the workpiece. Major functions can include:
- X-axis movement
- Y-axis movement
- Position adjustment
- Wire feeding
- Welding control
- Gouging control
- Teaching functions
- Emergency operation
Particularly useful during on-site setup, where the operator needs to observe the actual torch or gouging head position directly.
Real-Time Process Monitoring
During automatic welding or gouging, the control system can monitor the operating process and provide machine status, position feedback, process feedback, alarm messages and abnormal condition indication. This improves operator visibility during automated repair.
JH-350 Series Models
The JH-350 family consists of several modular models for different maintenance requirements. The models share a modular platform concept and can be configured with different welding power sources and process modules according to the application.
JH-350 Series — Model Overview
| Model | Main Function |
|---|---|
| JH-350F | Fully Automatic Air Carbon Arc Gouging Machine |
| JH-350L | In-Situ / Offline Automatic Hardfacing Machine |
| JH-350SL | Single-Head Integrated Hardfacing & Gouging Machine |
| JH-350XL | Dual-Head Integrated Hardfacing & Gouging Machine |
| JH-1280 | In-Situ / Offline Hardfacing Workstation |
How to Select the Right JH-350 Model
Choose JH-350F If:
Your main requirement is:
- Automatic air carbon arc gouging
- Damaged overlay removal
- Large-area automatic surface preparation
Choose JH-350L If:
Your main requirement is:
- Automatic hardfacing
- In-situ repair
- Offline repair
- Wear component rebuilding
Choose JH-350SL If:
You need:
- Hardfacing + gouging
- One working head
- Flexible on-site repair
- Compact modular configuration
Choose JH-350XL If:
You need:
- Hardfacing + gouging
- Dual-head configuration
- Higher repair productivity
- Larger industrial maintenance projects
Choose JH-1280 If:
You require:
- A more integrated repair workstation
- In-situ / offline applications
- Larger automated maintenance projects
- Expanded automation capability
Send Your Application Details
Send workpiece photos, dimensions, wear depth, required overlay and repair location — JINHUA engineers will evaluate which model is the most appropriate solution.
JH-350 vs. Conventional Manual Repair
How the integrated automated platform compares with conventional manual repair practice.
| Capability | JH-350 Series | Conventional Manual Repair |
|---|---|---|
| Hardfacing | Automatic | Manual / semi-automatic |
| Air Carbon Arc Gouging | Automatic configuration available | Mostly manual |
| Gouging + Welding Integration | Yes | Separate operations |
| Multi-Axis Movement | Programmable | Operator controlled |
| Three-Axis Interpolation | Available | No |
| Oscillation Welding | Automatic | Manual / basic oscillator |
| Curved Path Capability | Programmable | Operator dependent |
| Wire Feeding | Automatic | Manual / standard feeder |
| Carbon Electrode Feeding | Controlled | Manual |
| Position Teaching | Yes | No |
| Process Monitoring | Digital | Limited |
| Wireless Operation | Available | Limited |
| In-Situ Installation | Modular | Depends on manual setup |
| Repeatability | Higher | Operator dependent |
Benefits for Industrial Maintenance
Six practical benefits for maintenance teams repairing large, high-value wear components.
Reduce Manual Gouging
Large-area manual gouging is repetitive and highly dependent on operator technique. Automation provides more controlled movement and allows technicians to focus on process supervision.
Improve Repair Repeatability
Programmed motion provides more repeatable welding and gouging trajectories between production cycles.
Reduce Equipment Downtime
For suitable applications, in-situ repair can reduce the need to transport large components to an external workshop.
Integrate Surface Preparation and Rebuilding
The same machine family can support both material removal and hardfacing.
Reduce Dependence on Skilled Manual Welders
Automation cannot replace welding procedure development, but it can reduce repetitive manual torch movement.
Suitable for Large Components
The modular structure can be positioned around workpieces that are difficult to handle with conventional fixed welding machines.
Industries and Typical Applications
The JH-350 series is used across heavy industries where large wear components must be rebuilt rather than replaced.
Cement
Typical applications:
- Roller presses
- Vertical grinding mills
- Grinding rollers
- Wear liners
Steel
Typical applications:
- Continuous casting rolls
- Industrial rollers
- Wear components
Power Generation
Typical applications:
- Coal mill rollers
- Grinding components
- Wear-resistant parts
Mining
Typical applications:
- Crusher components
- Grinding equipment
- Wear liners
Metallurgy & Heavy Equipment Maintenance
Metallurgy and heavy equipment maintenance are also part of the main industries served by the JH-350 series. Application details are evaluated according to the workpiece, wear condition and repair method.
Petrochemical
Customized hardfacing applications can be evaluated according to component geometry, base material and corrosion/wear mechanism.
Machine installation layout — cross-slide, workpiece position and control cabinet arrangement.
Heavy industry wear repair — roller presses, mills, crushers and wear liners.
Main System Configuration
A typical JH-350 system can include the following modules. Final configuration depends on the selected JH-350 model.
Technical Characteristics
Standard characteristics of the JH-350 series integrated hardfacing and gouging platform.
JH-350 Series — Technical Characteristics
| Item | JH-350 Series |
|---|---|
| Main Functions | Automatic Hardfacing / Automatic Air Carbon Arc Gouging |
| Operation | In-Situ / Offline |
| Motion Control | Multi-Axis Digital Control |
| Interpolation | Three-Axis Curve / Contour Interpolation |
| Hardfacing Process | Open Arc / SAW / Flux-Cored / Gas-Shielded depending on configuration |
| Gouging Process | Automatic Air Carbon Arc Gouging |
| Main Structure | Modular Aluminum Cross-Slide |
| Horizontal Arm Section | Approx. 80 × 40 × 4 mm |
| Wire Feeding | Automatic Flux-Cored Wire Feeder |
| Carbon Electrode Feed | PID / Analog-Controlled |
| Control | PLC + Touchscreen |
| Remote Operation | Wireless Handheld Controller |
| Installation | Modular / Removable |
| Machine Models | JH-350F / JH-350L / JH-350SL / JH-350XL / JH-1280 |
Operating Environment
| Requirement | Specification |
|---|---|
| Ambient Temperature | -10°C to +40°C |
| Relative Humidity | ≤95%, non-condensing |
| Working Environment | Well ventilated, without severe mechanical impact |
| Frequency | 50 Hz |
| Power Supply | Customized according to destination-country requirements |
Machine configuration — standard modular platform.
Machine Details
Cross-slide and aluminum arms, traveling carriage, welding and gouging heads, feeding mechanisms and control units of the JH-350 platform.
Traveling carriage — moves along the aluminum arm to control the working position.
Cross-slide structure — horizontal and vertical aluminum alloy arms.
Working head adjustment — multi-directional mechanism for angle, height and position.
Tell Us About Your Repair Application
To recommend the correct JH-350 configuration, please provide the following information. Based on this information, JINHUA engineers can recommend the JH-350 model, welding configuration, gouging configuration, installation method, welding process and required auxiliary equipment.
- 01 IndustryCement / Steel / Mining / Power / Other
- 02 Workpiece TypeVertical mill roller / Roller press / Casting roll / Crusher / Other
- 03 Workpiece Dimensions
- 04 Repair Area Dimensions
- 05 Photos of the Worn Area
- 06 Base Material
- 07 Existing Hardfacing Material
- 08 Required Overlay Thickness
- 09 Required Hardness
- 10 Welding Wire Specification, if available
- 11 Need Automatic Gouging?Yes / No
- 12 Repair MethodIn-Situ / Offline / Not Yet Determined
- 13 Factory Power Supply
- 14 Destination Country
Request a Technical Proposal
Complete the form and JINHUA engineers will recommend the JH-350 model, welding and gouging configuration, installation method and required auxiliary equipment.
Frequently Asked Questions
Common questions about integrated hardfacing, air carbon arc gouging and wear component rebuilding.
What is an automatic hardfacing and gouging machine?
It is an automated maintenance system capable of both removing damaged material through air carbon arc gouging and rebuilding the surface through hardfacing welding.
The JH-350 integrates these functions into a modular automated platform.
What is air carbon arc gouging?
Air carbon arc gouging uses an electric arc between a carbon electrode and the workpiece to melt metal, while compressed air removes the molten material.
It is commonly used for weld removal, groove preparation and removal of damaged metal before repair welding.
Can the JH-350 perform both welding and gouging?
Yes. Different JH-350 models are available for gouging only, hardfacing only, and integrated hardfacing + gouging. Refer to the model table for the appropriate configuration.
Can it be used for in-situ repair?
Yes. The modular structure is designed for certain on-site / in-situ repair applications where moving the complete workpiece is difficult.
The feasibility depends on equipment access, available installation space and workpiece geometry.
Can it also be used offline?
Yes. The JH-350 can also be installed in a workshop for controlled offline rebuilding.
What industries use the JH-350?
Typical industries include cement, steel, power generation, mining, metallurgy and petrochemical.
Can it repair cement roller presses?
Yes. Cement roller press hardfacing is one of the typical applications of this equipment family.
The machine can be used for both damaged surface preparation and subsequent wear-resistant overlay welding.
Can it repair vertical mill rollers?
Yes. Depending on installation conditions, the modular system can be configured for in-situ or offline hardfacing of vertical mill rollers.
Does it support automatic carbon electrode feeding?
Yes. The automatic gouging configuration uses controlled carbon electrode feeding to support continuous gouging.
Does the machine support oscillation welding?
Yes. Oscillation hardfacing can be configured according to the selected model and welding procedure.
What does three-axis interpolation mean?
Three-axis interpolation means multiple motion axes can be coordinated simultaneously to create a programmed trajectory.
This allows the welding or gouging head to follow more complex workpiece shapes than a simple straight-line carriage.
Can one operator install the machine?
The lightweight modular aluminum structure is designed to reduce installation complexity.
Actual manpower requirements depend on the selected model, workpiece and installation position.
Can the JH-350 be customized?
Yes. JINHUA can customize machine size, axis travel, number of working heads, welding process, gouging process, welding power, wire feeding, automation and installation structure according to the customer’s workpiece.